Common Diseases of Farm AnimalsCraig, Robert Alexander
Science
Common Diseases of Farm Animals
Craig, Robert Alexander
Veterinary medicine
CAPONIZING.--The castration or caponizing of the male chicken is commonly
practised in certain localities. This operation changes the disposition of
the cockerel. He becomes more quiet and sluggish, never crows, the head is
small, the comb and wattles cease growing and the hackle and saddle
feathers become well developed. A capon always develops more uniformly and
is larger than the cockerel.
_The best time to caponize the cockerel_ is when he weighs between two or
three pounds. If older and heavier, the testicle becomes so large that it
is very difficult to remove, and the danger from tearing the spermatic
artery and a fatal haemorrhage resulting is greater.
There are several kinds of _caponizing instruments_. They may be purchased
in sets. Each set should contain an instrument for removing the testicle; a
knife for making the incision through the abdominal wall; a sharp hook for
tearing through the thin membrane; spring spreader for holding the lips of
the incision apart; a blunt probe for keeping the intestines out of the way
of the operator; and a pair of tweezers for removing clots of blood. The
different instruments for removing the testicles are a spoon-like scoop,
spoon forceps and cannula. The spoon-like scoop is preferred by most
operators.
_The cockerel_ is confined for the operation by passing a strong noose of
cord around both legs, and a second noose around the wings close to the
body, that have weights fastened to them. The cords pass through holes or
loops in a barrel or board that is used for an operating table. This holds
the cockerel firmly and prevents his struggling.
_The bird should be prepared_ for the operation by withholding all feed and
water for a period of twenty-four hours or longer, for the purpose of
emptying out the intestine. The operator must have a strong light, in order
to work quickly and safely. Direct sunlight or electric light should be
used.
The instruments should be placed in a two per cent water solution of
carbolic acid. A second vessel containing a two per cent water solution of
liquor cresolis compound for cleaning the skin is necessary. Absorbent
cotton should be used for washing the wound.
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